Ethylene glycol is used as a protecting group for carbonyl groups in organic synthesis. Treating a ketone or aldehyde with ethylene glycol in the presence of an acid catalyst (e.g., p-toluenesulfonic acid; BF3â¢Et2O) gives the corresponding a 1,3-dioxolane, which is resistant to bases and other nucleophiles.
Charles Street and Beacon Hill in Historic Boston, Massachusetts. Shops on Charles Street are an eclectic mix of boutiques, galleries, jewelry stores and home accessory shops with plenty of nearby restaurants, inns and historic sites.
Caswell Gallery - prints and artwork, including Boston scenes; framing, stationery, cards; 31 Charles St., 617-523-9868WEBSITE. Boston Antiques Co. - closed until Spring 2015; artwork, jewelry, china, home decor; 119 Charles St., 617-227-9810WEBSITE. Eugene Galleries, Inc. - antique maps and engravings, books, antique frames, collectibles; 76 Charles St., 617-227-3062WEBSITE.